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Showing 12 of 1617 documents
Showing 12 of 1617 documents
POPULATION SIZE AND BREEDING SUCCESS OF GOULD’S PETREL Pterodroma leucoptera leucoptera ON CABBAGE TREE ISLAND, NEW SOUTH WALES: 1996–97 TO 2005–06
Posted: 11/04/2021Gould’s Petrel Pterodroma leucoptera leucoptera breeds only on Cabbage Tree and Boondelbah islands at the entrance to Port Stephens, New South Wales. Annual surveys to estimate population size and reproductive output of the colony on Cabbage Tree Island, where more than 96 per cent of the population nest, have been conducted since 1989–90. In the […]
Read MoreTHE POPULATION STATUS OF THE KELP GULL Larus dominicanus IN VICTORIA
Posted: 11/04/2021Kelp Gulls Larus dominicanus were first reported in Victoria in 1953 in Port Phillip Bay and currently occur around Port Fairy and Lady Julia Percy Island in western Victoria, Phillip Island and Port Phillip Bay in central Victoria and Wilsons Promontory and Lakes Entrance in eastern Victoria. Breeding of Kelp Gulls was first recorded in […]
Read MoreDIET, OCCUPANCY AND BREEDING PERFORMANCE OF WEDGE-TAILED EAGLES Aquila audax NEAR CANBERRA, AUSTRALIA 2OO2-2OO3: FOUR DECADES AFTER LEOPOLD AND WOLFE
Posted: 11/04/2021W€ compared the diet and breeding performance of Wedge-tailed Eagles Aquila audax near Canberra in 2002-2003 with that found in the same area in 1964 by Leopold and Wolfe (1970). We located a total of 44 active territories, and checked 26 of the 32 territories originally found by Leopold and Wolfe. Twenty-two (85%) of the […]
Read MoreDIET OF BREEDING WEDGE-TAILED EAGLES Aquila audax IN SOUTH-CENTRAL QUEENSLAND
Posted: 11/04/2021The diet of the Wedge-tailed Eagle Aquila audax was studied in south-central Queensland, an area of low rabbit density, by means of prey remains (n = 795 prey animals) and pellets (total 2.26 kg) from 13 active nests at five sites (four sheep stations, one national park) over one breeding season. Nine clutches were all […]
Read MoreFEEDING ECOLOGY OF THE WEDGE-TAILED EAGLE Aquila audax lN NORTH-WEST QUEENSLAND: INTERACTIONS WITH LAMBS
Posted: 11/04/2021The diet of the Wedge-tailed Eagle Aquila audax was studied by analysis of pellets (n = 145) and prey remains from four sites in the north-west Queensland sheep rangelands and one non-sheep site in north Queensland. Eagle behaviour around lambs was observed from a hide at sheep camps at three sites (total 216 h), and […]
Read MoreFACTORS INFLUENCING CHICK SURVIVAL IN THE WEDGE-TAILED EAGLE Aquila audax
Posted: 11/04/2021Nest-site characteristics of the Wedge-tailed Eagle Aquila audax were studied in 1999 at Fowlers Gap, in arid western New South Wales, by measuring parameters of nest trees for five active nests and eight other nests. Parental and chick behaviour and prey items were recorded at five nests by remote time-lapse video surveillance through the nestling […]
Read MoreNEST-SITE SELECTION, DIET AND PARENTAL CARE OF THE WEDGE-TAILED EAGLE Aquila audax lN WESTERN NEW SOUTH WALES
Posted: 11/04/2021Nest-site characteristics and selection of the Wedge-tailed Eagle Aquila audax were studied in 1997 at Fowlers Gap, in arid western New South Wales, Australia, by measuring parameters of nest trees (n = I active, 31 inactive) and other trees {n = 150 in circular plots around nest trees). Parental behaviour and prey items at two […]
Read MoreMORPHOMETRIC MEASURES AS A MODERATE PREDICTOR OF GENDER IN THE WHITE-BROWED BABBLER Pomatostomus superciliosus girgandra
Posted: 11/04/2021White-browed Babblers have monomorphic plumage but exhibit size and weight dimorphism. Males are heavier, have longer tarsi, wings, and culmens than females. Two hundred and eighty-three White-browed Babblers from the central western region of NSW were sexed using laparotomy and discriminant function analysis was used to determine the extent to which morphometric data could be […]
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